Composite-disk sound-record.



V. H. EMERSON, G. A. MANWARING & J. K. REYNARD. COMPOSITE DISK SOUND RBCO 1D.

APPLICATION FILED JUNE 29, mos.

1,102,253. Patented July 7, 1914.

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@Fllllh VICTOR H. EMERSO1\T, 013' NW YORK, N. Y., GEORGE A. MANWARING, O1? BAYONNE, NEW JERSEY, AND JAMES K. REYNARD, 0 NEW YORK, N. Y., ASSIGNORS TO AMERICAN G RAPI-IOLPHONE COMPANY, OF'BRIDGEPORT, CONNECTICUT, A CORPO- RATION OF WEST VIRGINIA.

COMPOSITE-DISK SOUND-RECORD.

Specification of Letters Patent.

Application filed June 29, 1905.

Patented July '7, 1914. Serial No. 267,598.

NARI), citizens of the United States, and

residents of New York city, New York; Bayonne, -Hudson county, New Jersey, and New York city, New York, respectively, have invented a new and useful Improvement in Composite-Disk Sound-Records, which improvement is fully set forth in the following specification.

This invention relatesto sound-records impressed in disks or tablets, and more particularly tothe composite tablet and the manner of building up the sa1ne,and the method of making the record.

The invention will best be understood by describing in detail t e successive steps employed in producing re article.

The drawings annexed hereto, as part of the specification, are sectional views exaggerated in thickness.

Figure 1 shows a pair of rollers through which is passing a matrix and the unlinished record-tablet; Fig. 2 represents at press operating upon the same; and l ig. 3 is the finished article.

The body of our tablet is built up of. alternating layers of very thin paper and a glue, constituting what is known in the stereotypers art as a flong. This glue contains copal, starch, gluten, gum traga canth, and alum (to prevent fermentation and to harden), and is not in itself new with us. l'Ve proceed by placing a sheet of very thin paper upon a fiat surface, then apply a liberal coating of this glue, then spread over this a. second sheet of paper followed by a second layer of the glue, and so on. Upon the last layer of the glue we place, instead of the ordinary thin sheet ol. paper, a specially prepared sheet. This letter is a thin sheet of paper coated with a suitable paint which is susceptible of receiving and retaining the impressions contained in the sound-record matrix, and this material must also be waterproof or wa.terinsr luble. Preferably this paint consists of a solution containing celluloid and shellac with rotten stone. This solution in itself forms no part of the present invention. This solution or its equivalent is applied in one or more coats to the sheet of paper and allowed to become dry and seasoned. paper already thus prepared placed upon top ol. the llon;5" above referred to, to constitute the facing of our new record tablet.

In the drawings, A, represents the flong, made up 01. a plurality of very thin sheets of paper having interu'icdiate layers of the blue and 13 represents the facing-sheetcontaining upon its outer surface a that of the paint above referred to. This composite tablet A. B is then placed upon a suitable recordauatrix C, with lhe facing B adjacent to the matrix-surface; a felt cloth D, about one inch thick, is laid upon the back (top) of the Hom and the whole is passed under heated nolliu's E. The action of the rollers serves to impress into the facing B the irregularities of the nmtrix-surl'ace, and. likewise :lorces out much of the water trom the dong. its the next stop, we place the matrix and partly cmuprossud and dried dong, as a whole, in a suitably heated press l 'l'hcroal'tor, it removed l'rom the press and the finished record A ll is separated l'rom the matrix. 'lhis linislual article con The facingtalus in the surface ll a cmrcct and perinaucut copy of the original sound-round from which the matrix hus boon obtained, and is durable and noun rpublc. it will be ob served that water is the medium in which the glue is dissolved, and that neither us walcr nor when changed into strum will it all'cot the paint" upon the facing ll. .l'lui" log the rolling and pre ing, under tho neat oi the rollers and press, the water is forced out in the l'orm ol steam and is partly ab, sorbnd by the l'cll so as to'h-avc the tablet .i. ll piri'cclly dry and hard. lhe complelcd article 1 will then be lil-zishcd by waterproofing its bail: and edge, This system constitute-1 a rrulical rlc uu'turc in the prmluclion ol' soluul-rccords: hcreiolfmje impressed sourut-records have been made by treating a material which becomes soft and plastic under heat and pressure, whereas, our present system deals with a soft and plastic material which becomes hard and set under heat and pressure.

We do not limit ourselves to the precise ingredients or methods cn'lploycd, having); given detailed descriptions merely for the sake of clearness,

Having thus described our invention 'we claim posed of a plurality of paper, the outer sheet l suitable paint contai shellac in which the record proper, is im pressed and all of said lmpregnated with e sult 2. As an article of manufacture, a soundrecord consistlng oi composite tablet composed of a plurality of paper, the outer sheet 1 1,102,.eee

sheets of very thin iavmg a facing of ning celluloid and sheets united and able glue.

sheets of very thin iavlng a, facing ofl superior sound-record material in which the record proper is impressed andell of said sheets being united and impregnated with a suitable rlue.

In testnnony whereof We have signed this specification in the presence of two subscrib ing Witnesses.

vIcToR'H. muees ou. GEORGE A. MANWARING.. JAMES REYNARD.

Witnesses r C. A. lb. Msssm, H. HARTINGE 

